The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2018
Filed:
Mar. 25, 2015
Fuji Filter Manufacturing Co., Ltd., Tokyo, JP;
Jfe Engineering Corporation, Tokyo, JP;
Yuichi Takahashi, Utsunomiya, JP;
Hiroyuki Takahashi, Sakura, JP;
Masanori Nagafuji, Tokyo, JP;
Yusuke Shimono, Tokyo, JP;
FUJI FILTER MANUFACTURING CO., LTD., Tokyo, JP;
JFE Engineering Corporation, Tokyo, JP;
Abstract
A filtration device including: a casinghaving a fluid inlet, a fluid outlet, a raw fluid chamber, and a filtered-fluid chamber; a box-shaped or tube-shaped filter element() having a filter mediumremovably installed inside the casing, allowing the fluid to pass through from inside to outside to filter the fluid, and having a backwashing mechanism inside thereof; and a backwash fluid discharge pipewhich discharges backwash fluid to the outside, wherein the backwashing mechanism has a fixed pipefixed to the inside of the filter element, a movable pipemovably fitted to the outside of the fixed pipe, and a backwash headattached to the movable pipe to backwash the filter medium, wherein the fixed pipe and the movable pipe movably guide the backwash head and form a discharge passage for backwash fluid.